Comparison

Vigenere Shift Plus vs PilotSpeak

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Vigenere Shift Plus

Encrypt and decrypt text messages using the Vigenère cipher. This application provides a straightforward tool for applying this historical encryption method to your messages.

Highlights
  • Encrypt messages
  • Decrypt messages
  • Vigenère cipher implementation
  • Simple user interface
  • Text encryption tool
Features
Read full description

The Vigenère cipher is a method of encrypting alphabetic text by using a series of different Caesar ciphers based on the letters of a keyword. With this simple App you can encrypt or decrypt messages with the Vigenère Cipher.

About

PilotSpeak

Practice aviation radio communications with an AI-powered system. It simulates real-world air traffic control scenarios, providing immediate feedback on your callouts and helping you build confidence for actual flights.

Highlights
  • Simulated ATC radio calls
  • Real-time speech recognition feedback
  • Customizable with callsign and home field
  • Scenarios based on FAA publications
  • Progressive learning from ground to landing
  • Typing option for silent practice
Features
Read full description

You can know the words and still freeze with your thumb on the button. The only fix is having said them before. PilotSpeak puts you on frequency and makes you talk. You say the call out loud, the controller answers, and you find out immediately whether what came out of your mouth was right. WHAT IT IS 44 radio calls, laid out in the order a flight actually happens: • On the Ground — clearances, taxi routes, hold-short instructions • Getting Airborne — from the hold line to your first enroute frequency • Enroute — advisories, handoffs, everything that changes mid-flight • Coming Back In — sequencing, the pattern, the landing clearance • Nobody in the Tower — self-announced calls with no controller listening • In the Clouds — clearances, holds, approaches and the miss • When It Goes Wrong — the calls you hope to never make Each call shows how many items you have to read back correctly, so you can see what you are walking into before you key up. BUILT AROUND YOUR AIRCRAFT Tell it your callsign and your home field once. From then on the scenarios use your callsign, your field's real runways, taxiways and published frequencies — not a generic trainer at a generic airport. The app also builds a speech model around those two answers, so the recogniser expects runway numbers, squawk codes and your tail number instead of everyday English. THE CONTROLLER ANSWERS Get it right and you move on. Miss something and you are told exactly what you left out, then given the phrasing to copy. There is an optional short-tempered controller for anyone who would rather be told off than encouraged. Can't talk out loud right now? Type the call instead and the scenario carries on as normal. WHERE THE CONTENT COMES FROM Every scenario is written from public-domain FAA publications — the Aeronautical Information Manual, the Pilot/Controller Glossary, FAA Order JO 7110.65 and AC 90-66C — and each one names the paragraph it came from, right on the setup screen. WHAT IT IS NOT This is a practice tool for radio phraseology and confidence. It is not flight instruction, it does not replace a certificated flight instructor, and it is not connected to real air traffic control. Privacy Policy: https://pilotspeak.app/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

Vigenere Shift Plus1 screens
PilotSpeak3 screens

Verdict

The call

The clearest difference is price: PilotSpeak at Free against Vigenere Shift Plus's $0.99. PilotSpeak also leads on rating (5.0 vs 3.3) and update cadence (every 2 weeks vs every 3 months). Vigenere Shift Plus's advantage is in-app purchases (none vs 5) and device support (4 vs 2). On ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

PilotSpeak is free to download; Vigenere Shift Plus costs $0.99 up front. PilotSpeak sells 5 in-app purchases, starting at $6.99 per 7 days. Vigenere Shift Plus asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PilotSpeak holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

Vigenere Shift Plus ships an update every 3 months, PilotSpeak every 2 weeks. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

Scorecard8 real differences · 1 level
Vigenere Shift Plus versus PilotSpeak: the parameters behind the verdict, then further details
ParameterVigenere Shift PlusPilotSpeak
Price$0.99Free — better
Rating3.3 (3 ratings)5.0 (1 ratings) — better
Number of ratings3 — better1
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size6 MB34 MB
Age rating4+4+
Developera RausaDzmitry Viarenich

Customer experience

Vigenere Shift Plus

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

PilotSpeak

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Vigenere Shift Plus

No in-app purchases

5 purchases

PilotSpeak

Subscriptions3
  • Premium$6.997 Days
  • Premium$14.991 Month
  • Premium3 Days trial$49.991 Year
One-time2
  • Private Pilot Study Guide$9.99
  • Commercial Pilot Study Guide$14.99

Questions

Is Vigenere Shift Plus free?
Vigenere Shift Plus costs $0.99, with no in-app purchases.
Is PilotSpeak free?
PilotSpeak is free to download, with in-app purchases available.
Which has better reviews, Vigenere Shift Plus or PilotSpeak?
PilotSpeak is rated higher. Vigenere Shift Plus averages 3.3 out of 5 from 3 ratings, while PilotSpeak averages 5.0 from 1 ratings.
Do Vigenere Shift Plus or PilotSpeak have ads?
Neither Vigenere Shift Plus nor PilotSpeak shows ads.
Which is updated more often, Vigenere Shift Plus or PilotSpeak?
Vigenere Shift Plus ships an update every 3 months, and PilotSpeak every 2 weeks. Most recently, Vigenere Shift Plus was updated on October 10, 2026 and PilotSpeak on October 11, 2026.

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